N-亚苄基乙二胺的制备研究  

Study on preparation of Nmonobenzylidene ethylenediamine

作　　者：刘学明[1] 秦圣英[2] 谈小兰[1] 

机构地区：[1]湖北工学院生物工程系 [2]四川大学化学系

出　　处：《化学试剂》1998年第3期172-174,共3页Chemical Reagents

摘　　要：用与苯甲醛反应生成Ｎ－亚苄基乙二胺的方法对乙二胺进行单氨基保护，结果发现，即使利用大过量乙二胺和高稀浓度法，二者反应均易得到高产率的Ｎ，Ｎ′－二亚苄基乙二胺。对标题物的制备条件进行了研究，在高稀浓度溶液中使用过量乙二胺反应，并迅速加入干燥剂除去缩合水，制得Ｎ－亚苄基乙二胺，产率７８．８％。To protect one aminogroup of ethylenediamine,it was proposed to let it react with benzaldehyde to form Nmonobenzylidene ethylenediamine (1)But the main product was ethylenedibenzylimine(2) rather than 1,even farexcess of ethylenediamine and method of highly diluted concentration of ethanol were usedIt was found that the stability of 2 was far greater than that of 1, 2 was easy to be formedAnd 1 could be transformed to 2 through an equilibrium reaction in presence of waterThe method for preparing 1 in good yield was found out

关 键 词：乙二胺 席夫碱 亚苄基 合成 

分 类 号：O625.632[理学—有机化学]